JPH0537100Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a valve device for adjusting the amount of cold air supplied to each of a plurality of rooms such as a refrigerator.

[Prior art]

Conventionally, for example, most refrigerators have separate freezer compartments and refrigerator compartments, and cold air from the cooling compartment is sent to each compartment to cool them respectively. The cold air sent to each room is then sent to the outlet of the cold air duct.
- A damper is provided as in Publication No. 87083, etc.
The motor was used as the drive source to control the amount of cold air that opened and closed the damper using a signal from the temperature sensor inside the refrigerator.

This damper was attached to the intake hole in the wall of each room, such as the refrigerator compartment, freezer compartment, and chilled room, and opened and closed to control the temperature of each compartment.

In other words, since dampers were installed in the intake holes of each compartment, modern refrigerators with many compartments had to be installed for each compartment, making assembly work difficult and requiring a lot of space. It was necessary. Furthermore, there is a drawback that the cost is high.

[Purpose of invention]

In view of the above-mentioned drawbacks, the present invention has been developed by attaching a valve device having one intake hole and a plurality of exhaust holes to the internal wall of a refrigerator, or using it in an air conditioner/heater to supply cold air and warm air to multiple rooms in one go. It is an object of the present invention to propose a valve device that can easily and inexpensively adjust the exhaust amount by automatically selecting the exhaust hole of the valve device.

[Structure of the idea]

The present invention includes a cylindrical sealed case in which one intake hole and a plurality of exhaust holes are formed in a peripheral body part, and a cylindrical sealed case in which one intake hole and a plurality of exhaust holes are formed in the peripheral body part, and in which the intake hole and the exhaust holes are selectively arranged. The device includes a rotatably provided valve connected to the case, and a motor for driving and controlling the valve from outside the case.

〔Example〕

Hereinafter, the present invention will be explained with reference to an illustrated embodiment. As shown in FIGS. 1 and 2, a valve 2 is rotatably provided in a cylindrical closed case 1 in sliding contact with the valve 2, and a central shaft 2a of the valve 2 is rotated in forward and reverse directions by a motor 3.

The hermetic case 1 has one intake hole 4a and a plurality of exhaust holes 4b, 4c, 4d formed in the peripheral body 4, and when the valve device is used to control the temperature of the refrigerator, it is attached to the wall inside the refrigerator, The intake hole 4a and the cooler 5 are connected by a pipe 6, each exhaust hole and each room of the refrigerator are connected by the exhaust hole 4b and the freezer compartment 7 by a pipe 8, the exhaust hole 4c and the chilled room 9 by a pipe 10, and the exhaust hole 4d. and a refrigerator compartment 11 are connected to each other by a pipe 12.

As shown in FIG. 2, the freezer compartment 7, the chilled room 9, and the refrigerator compartment 11 are each provided with a temperature sensor 13 and a setting memory 14 for manually setting the room temperature, and are connected to a comparator 15, respectively. The output of is input to the control circuit 16. When a stepping motor is used as the motor 3, the output of the control circuit 16 is input to the pulse generator 17, and the output of the control circuit 16 is input to the pulse generator 17.
For example, a pulse output of 1 Hz/1 Sec from the oscillator 18 is input to the oscillator 18.

A lead wire 3a of a coil (not shown) of the motor 3,
3b, 3c, and 3d are connected to the output side of the pulse generator 17. When the room temperature is higher than the set temperature from the comparator 15, for example, if the room temperature is set at -5°C in the setting memory 14 and the temperature sensor 13 measures the room temperature and the room temperature is 0°C, The Hi signal from the comparator 15 controls the opening of the exhaust hole and the passage of cool air.
When the indoor temperature is lower than the set temperature, a Lo signal is input to the control circuit 16 to control the exhaust hole to close.
A total signal of the signals from each comparator 15 is sent from the control circuit 16 to the pulse generator 17 to the motor 3.
For example, the path that is input as a signal instructing the direction and amount of rotation of the coil and energizes the coil is 3 when rotating in the forward direction.
The motor 3 is energized in the order of a→3b→3c→3d→, and in the reverse rotation, the path is energized in the order of 3a→3d→3c→3b→, and the motor 3 is driven to rotate forward or backward by a predetermined amount.

Figure 1 shows the position of the valve 2 when the temperature of all the chambers is higher than the set temperature. All the exhaust holes are connected to the intake holes, the communication hole 2b of the valve 2 is opened to the intake hole 4a, the connection holes 2c, 2d, and 2f are closed, and the connection hole 2e is connected to the three exhaust holes. 4b, 4
It is opened at c and 4d.

In this state, cold air is supplied to the freezer compartment 7, chilled room 9, and refrigerator compartment 11 of the refrigerator.

In FIG. 3, the exhaust hole 4d is closed, the supply of cold air to the refrigerator compartment 11 is stopped, and the cold air is supplied to the freezer compartment 7 and the chilled room 9.

In FIG. 4, the exhaust holes 4c and 4d are closed, the supply of cold air to the chilled room 9 and the refrigerator compartment 11 is stopped, and the cold air is supplied to the freezer compartment 7.

In FIG. 5, the exhaust holes 4b and 4d are closed, the supply of cold air to the freezer compartment 7 and the refrigerator compartment 11 is stopped, and the cold air is supplied to the chilled room 9.

In FIG. 6, the exhaust hole 4c is closed, the supply of cold air to the chilled room 9 is stopped, and the cold air is supplied to the freezer compartment 7 and the refrigerator compartment 11.

When the valve 2 shown in FIG. 1 is changed from FIG. 3 to FIG. 6, or from the state shown in each figure to the state shown in another figure, each comparator 15 outputs a Hi signal or a Lo signal.

When the valve device is configured as described above, it is possible to control the temperature of each room of the refrigerator with one valve device, which does not require space, and it is easy to control because only one valve device needs to be controlled. At the same time, installation and removal from the refrigerator becomes extremely easy, and costs are reduced. The motor 3 may rotate in one direction.

When a DC micromotor is used as the motor 3, the position of the valve 2 is set by connecting an encoder or the like to the control circuit 16 to detect the rotation stop position of the motor.

In the above description, the cold air is supplied to three rooms: the freezer compartment 2, the chilled room 9, and the refrigerator compartment 11, but the number of exhaust holes is set according to the number of rooms to which the cold air is supplied.

In the above explanation, the valve device was described as being used to control the temperature of a refrigerator, but it can also be used in an air conditioner or heating device, by installing air conditioners and heaters in multiple rooms or multiple locations in one large room, and combining them into one cooler. It may also be used by incorporating it into a device for other purposes, such as supplying cold air, warm air, cold water, or hot water from a heat generator. The number of exhaust holes is appropriately set depending on the purpose of use.

The shape of the valve 2 may be changed as appropriate depending on how it is combined with the exhaust hole.
It can be used in a variety of ways just by replacing valve 2.

[Effect of idea]

Since the present invention is configured as described above, it is possible to control multiple temperatures of the freezer compartment, chilled room, cold storage compartment, etc. of the refrigerator with one valve device, does not require space, and is easy to install and remove. Since one valve device controls the temperature of multiple chambers, control is simplified. Furthermore, it is possible to provide a valve device that has excellent effects such as being able to control the temperature of multiple rooms and multiple locations in heating and cooling systems other than refrigerators with one valve device, making control easier.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a cross-sectional front view of the valve device, FIG. 2 is a side view and control circuit diagram of the valve device, and FIGS. 3 to 6 are various operating modes of the valve device. FIG. 1... Cylindrical sealed case, 2... Valve, 3
...Motor, 4...Peripheral trunk, 4a...Intake hole,
4b, 4c, 4d...exhaust holes.

Claims (1)

[Claims for Utility Model Registration] A cylindrical sealed case in which one intake hole and a plurality of exhaust holes are formed in a peripheral body, and a rotatable valve provided within the case and in sliding contact with the peripheral body. , a cooler or a heat generator connected to the intake hole; a temperature control chamber connected to each of the plurality of exhaust holes; and a temperature control chamber connected to each of the plurality of exhaust holes; What is claimed is: 1. A valve device comprising: a communication hole that selectively connects the valve to the valve; and a motor that rotationally drives the valve to select a stop position of the valve.